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CVE-2023-31287

23
FAUCET Score

CVE-2023-31287 is a high-severity vulnerability affecting Serenity Serene and StartSharp versions prior to 6.7.0, where password reset tokens remain valid after initial use. This allows an attacker with access to a user's browser history to reuse the token within a three-hour window to compromise the account. The vulnerability has a CVSS score of 7.8 (High), indicating a local attack vector with low complexity and high impact on confidentiality, integrity, and availability. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 6.7.0CPE matchmatch criteria
cpe:2.3:a:serenity:serene:*:*:*:*:*:*:*:*
< 6.7.0CPE matchmatch criteria
cpe:2.3:a:serenity:startsharp:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.8HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.43%
Probability of exploitation in next 30 days
EPSS Percentile
35.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0043 is in the 76th percentile among its peer group of 17,070 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (3)

github_advisorypatch availablevia nvd_reference
View patch
nugetpatch availablevia ghsa
Product: Serenity.Net.CoreFixed in: 6.7.0
nugetpatch availablevia ghsa
Product: Serenity.Net.WebFixed in: 6.7.0

Vendor Advisories (1)

nugetGHSA-2hp9-3xfr-r9w2high

Insufficient token expiration in Serenity

Apr 27, 2023

References

packetstorm.news / files/id/172648
packetstormsecurity.com / files/172648/Serenity-StartSharp-Software-File-Upload-XSS-User-Enumeration-Reusable-Tokens.html
seclists.org / fulldisclosure/2023/May/14
github.com / serenity-is/Serenity/commit/11b9d267f840513d04b4f4d4876de7823a6e48d2
PatchVendor Advisory